ZTE MF206A Issue

I'm using the Neo SIM card with the ZTE MF206A cellular module. On startup of the ZTE module's software application, the status never passes "Device is initializing" and restarts. When I use AT commands to send a SMS message, there isn't an error but the SMS messages are never actually sent. I've been able to use the module with an AT&T SIM card. The ZTE module is unlocked and can be used with any carrier.

Thank you for bringing this problem to our attention.The received response typically indicates the device may not be properly configured within our network. We are investigating further in an attempt to resolve your issue.However in the meantime please confirm the device in question is ICCID: 89185000150911601090.

I recently tested the SIM card with my personal phone which was unlocked. The behavior is the same as with the ZTE module, SMS messages can be sent through Android without error but they are never actually received by recipients.

Thanks for the post. I've been chatting with Abraham about this and have a couple questions. So I'm sure I understand the issue please tell me exactly what you're attempting. For example....

You're sending SMS-MO from your device, and in one case from your mobile phone. Correct?When you send from the device you're using an AT command. Correct?What is the intended recipient of you SMS-MO from the device with your Neo SIM?

Thanks for the reply. As a network security feature Neo doesn’t support SMS with devices which are not connected to the Aeris network. This protects your connected devices from potentially harmful network behavior from external sources.

You can learn how to use our API to transmit SMS with the tutorial on this page.